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Grade C-5 Titanium vs. A357.0 Aluminum

Grade C-5 titanium belongs to the titanium alloys classification, while A357.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade C-5 titanium and the bottom bar is A357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
100
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 6.7
3.7
Fatigue Strength, MPa 510
100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 1000
350
Tensile Strength: Yield (Proof), MPa 940
270

Thermal Properties

Latent Heat of Fusion, J/g 410
500
Maximum Temperature: Mechanical, °C 340
170
Melting Completion (Liquidus), °C 1610
610
Melting Onset (Solidus), °C 1560
560
Specific Heat Capacity, J/kg-K 560
900
Thermal Conductivity, W/m-K 7.1
160
Thermal Expansion, µm/m-K 9.6
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
140

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.4
2.6
Embodied Carbon, kg CO2/kg material 38
8.2
Embodied Energy, MJ/kg 610
150
Embodied Water, L/kg 200
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
12
Resilience: Unit (Modulus of Resilience), kJ/m3 4200
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 63
38
Strength to Weight: Bending, points 50
43
Thermal Diffusivity, mm2/s 2.9
68
Thermal Shock Resistance, points 71
17

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
90.8 to 93
Beryllium (Be), % 0
0.040 to 0.070
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0 to 0.2
Magnesium (Mg), % 0
0.4 to 0.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 87.5 to 91
0.040 to 0.2
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15